.context,
.empty,
.img {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 50px;
}

.context {
    border-bottom: 1px solid black;
    border-right: 1px solid black;
}

.borderTop{
    border-top: 0;
}
.borderBottom{
    border-bottom: 0;
}
.borderRight{
    border-right: 0;
}
.borderLeft{
    border-left: 0;
}